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  1. If the full-scale deflection current of a multimeter is 50 µA, its sensitivity is

  2. A.

     10 kΩ/V

    B.

     100 kΩ/V

    C.

     50 kΩ/V

    D.

     20 kΩ/V

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  3. Which of the following is likely to have the largest resistance?

  4. A.

     Voltmeter of range 10 V

    B.

     Moving coil galvanometer

    C.

     Ammeter of range 1 A

    D.

     A copper wire of length 1 m and diameter 3 mm

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  5. A VTVM is never used to measure ___________.

  6. A.

     Voltage

    B.

     Current

    C.

     Resistance

    D.

     None of the above

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  7. A CRO is used to measure ___________.

  8. A.

     Voltage

    B.

     Frequency

    C.

     Phase

    D.

     All of above

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  9. In foil strain gauge the thickness of foil varies from

  10. A.

     2.5 micron to 6 micron

    B.

     25 micron (or) less

    C.

     25 micron to 60 micron

    D.

     2.5 micron to 5 micron

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  11. If the negative potential on the control grid of CRT is increased, the intensity of spot ___________.

  12. A.

     Is increased

    B.

     Is decreased

    C.

     Remains the same

    D.

     None of the above

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  13. Isolation amplifier actually operates on the principle of

  14. A.

     Filtering

    B.

     Attenuation

    C.

     Clipping

    D.

     Amplification

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  15. Storage oscilloscope operates on the principle of

  16. A.

     Primary emission

    B.

     Deflection

    C.

     Secondary emission

    D.

     Diffusion

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  17. The principle of operation of LVDT is based on the variation of

  18. A.

     Self inductance

    B.

     Mutual inductance

    C.

     Reluctance

    D.

     Permanence

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  19. _____________ is the example of photo emissive cell

  20. A.

     LDR

    B.

     Photo diode

    C.

     Photo transistor

    D.

     Photo multiplier

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